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Novel PCB/CCL waste regenerated resistance pulp and preparing method thereof

A technology for regenerative resistors and waste, applied in cable/conductor manufacturing, circuits, electrical components, etc., can solve problems such as soil damage, land waste, environmental pollution, etc., achieve good adhesion, reduce production costs, and controllable conductivity Effect

Inactive Publication Date: 2017-06-13
惠州新联兴实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In principle, landfilling is done in ravines or wastelands, and some units use nearby burials. This method will cause soil damage and waste a lot of land.
Incineration treatment generally adopts direct combustion. This method is relatively simple and will not cause land waste. However, due to the large amount of poisonous gas produced during combustion, it will cause environmental pollution.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A new type of PCB / CCL waste recycled resistance slurry, including the following components by weight percentage:

[0026] Graphite 4%,

[0027] Carbon black 4%,

[0028] Ultrafine silver powder 1.7%,

[0029] Phenolic resin 20%,

[0030] Benzomelamine 2%,

[0031] Glass powder 8%,

[0032] Mixed powder 4%,

[0033] Hydrogenated Castor Oil 15%,

[0034] Propylene Glycol Methyl Ether 40%,

[0035] Silane defoamer 0.3%.

[0036] A method for preparing a novel PCB / CCL waste regeneration resistance slurry, characterized in that it comprises the following steps:

[0037] (1) Preparation of mixed powder: PP dust generated during PCB / CCL processing or scrapped copper clad laminates, edge materials, and components on substrate edge materials produced by copper clad laminate enterprises are removed and pulverized. After fine grinding, cyclone separation, Obtaining resin glass fiber powder and copper-containing powder, electrostatically sorting the obtained copper-contain...

Embodiment 2

[0043] A new type of PCB / CCL waste recycled resistance slurry, including the following components by weight percentage:

[0044] Graphite 5%,

[0045] carbon black 5%,

[0046] 3% superfine silver powder,

[0047] Phenolic resin 25%,

[0048] Benzomelamine 6%,

[0049] Glass powder 4%,

[0050] Mixed powder 2%,

[0051] Hydrogenated castor oil 10%,

[0052] Propylene glycol methyl ether 39.2%,

[0053] Silane defoamer 0.8%.

[0054] A method for preparing a novel PCB / CCL waste regeneration resistance slurry, characterized in that it comprises the following steps:

[0055](1) Preparation of mixed powder: PP dust generated during PCB / CCL processing or scrapped copper clad laminates, edge materials, and components on substrate edge materials produced by copper clad laminate enterprises are removed and pulverized. After fine grinding, cyclone separation, Obtaining resin glass fiber powder and copper-containing powder, electrostatically sorting the obtained copper-containi...

Embodiment 3

[0061] A new type of PCB / CCL waste recycled resistance slurry, including the following components by weight percentage:

[0062] Graphite 3%,

[0063] Carbon black 3%,

[0064] 2.5% superfine silver powder,

[0065] Phenolic resin 25%,

[0066] Benzomelamine 5%,

[0067] Glass powder 6%,

[0068] Mixed powder 3%,

[0069] Hydrogenated Castor Oil 12%,

[0070] Propylene Glycol Methyl Ether 40%,

[0071] Silane defoamer 0.5%.

[0072] A method for preparing a novel PCB / CCL waste regeneration resistance slurry, characterized in that it comprises the following steps:

[0073] (1) Preparation of mixed powder: PP dust generated during PCB / CCL processing or scrapped copper clad laminates, edge materials, and components on substrate edge materials produced by copper clad laminate enterprises are removed and pulverized. After fine grinding, cyclone separation, Obtaining resin glass fiber powder and copper-containing powder, electrostatically sorting the obtained copper-contain...

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PUM

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Abstract

The invention discloses a novel PCB / CCL waste regenerated resistance slurry and a preparation method thereof. The novel PCB waste regenerated resistance slurry includes a conductive phase, a bonding phase and an organic carrier, wherein the conductive phase includes graphite and ultrafine metal alloy powder Alloy, PP, substrate mixed dust, binder phase includes inorganic filler, phenolic resin and benzomelamine, organic carrier includes hydrogenated castor oil, etc. PCB / CCL enterprise side materials are processed and crushed to replace the raw materials in existing products and reuse resources, which is in line with the development direction of China's national policy for solid waste reduction, harmlessness and resource utilization.

Description

technical field [0001] The invention relates to the field of PCB / CCL recovery and regeneration, in particular to a novel PCB / CCL waste regeneration resistance slurry and a preparation method thereof. Background technique [0002] As an important component of electronic waste, waste printed circuit boards contain various heavy metals and harmful substances such as lead, cadmium, polyvinyl chloride plastics, brominated flame retardants, etc., which have potential environmental pollution; on the other hand, they also contain copper, Gold, silver and other common metals and rare and precious metals have high recycling value. Choosing an appropriate recovery and recycling process can not only save limited resources, but also avoid environmental problems caused by improper disposal. With the implementation of my country's sustainable development strategy, higher requirements are put forward for environmental protection, and the recycling and utilization of electronic waste has be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/22H01B1/24H01B1/16H01B1/18H01B13/00
CPCH01B1/22H01B1/16H01B1/18H01B1/24H01B13/00
Inventor 李继远
Owner 惠州新联兴实业有限公司
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